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Numerical Ability PAPER - 7 |
PAPER - 7
*One clock ringes 7 O'clock in 7 sec.In how many seconds it will ring 10 O'clock.
(ans 10.5 sec)
*One watch is showing 30 past 3 .What is the angle between minutes & hours hand?
(ans 75 degrees)
*Two pipes can fill a tank in 10 1nd 12 hours while third pipe will make the tank empty in 20 hours.If all three pipes operate simultaneously,in how many hours the tank will be filled ?
Ans.7hours 30 minutes.
*Diameter of a beaker is 7cm. Mambler(some instrument)dia is 1.4cm.How many mamblers has to be put to increase the water level by 5.6cm.
*The average of 4 consecutive even numbers is 27. What is the largest number?
(ans 30)
*One ball was dropped from 8ft height and every time it goes half of the height. How much distance it will travell before coming to rest.
(ans 24 approximately)
*Two trains are travelline at equilateral .Train A is traveling in the direction of earths spin.Other train B is travelling in opposite direction of earths spin.Which trains wheels will wear first?and why?
(ans TRAIN B .Because of less centrifugal force.)
* 6*12*15 is the volume of some material.How many cubes can be inserted into that?
Ans.40
*Cost of an item is x. It's value increases by p% and decreases by p%Now the new value is 1 rupee, what is the actual value.
Ans.(1000)/(1000-p*p).
*A right circular cylinder and a cone are there.Base radius of cone is equal to radius
* falling height is proportional to square of the time. one object falls 64cm in 2sec than in 6sec from how much height the object will fall.
* gavaskar average in first 50 innings was 50 . after the 51st innings his average was 51 how many runs he made in the 51st innings
*Distance between two poles is 50 meters.A train goes by 48 kmph in one minute.How many poles will be crossed by the train.
*A pole seen from a certain distance at an angle of 15 degrees and 100 meters ahead by 30 degrees. What is th height of pole.
*15 people--each has to pay Rs.20.. 20 people--each has to pay Rs.18.. for 40 people—how much has to pay ?
*salary is 's' per month,'x'% of salary is given as bonus, if 3 months salary is s1,s2 & s3 then what is his salary.
ans:s1*x/100 + s2*x/100 + s3*x/100
103)consider expresion 'ab' . what happens when 'a' is divided by 'c' & 'b' is multiplied by 'c'.
ans:value remains same.
* if p=2q then q=r*r,if p-odd then q is even,whether we decide r is even or odd ?
choices:a)first condition is sufficient
b)second condition is sufficient
c)both are sufficient
d)both are not sufficient
* What is the value of m given that
i) m is devided by 2
ii) m is devided by 5
Ans: none of these
* If he sells 40 magoes, he will get the selling price of 4 mangoes extra, What is his % increse in profit ?
Ans: 25%
* 100 glasses are there. A servant has to supply glasses to a person If he supplies the glasses without any damage he will et 3 paise otherwise he will loose 3 paise.At the end of supplying 100 glasses if he gets 270 paise, how many glasses were supplied safely.
Ans: 95
* distance D=rt where r & t are +ve and r is constant,as t increses then D_________
ans:D increses irrespective of r & t
* E=I*I*R what is the effect of E when I becomes I/2
ans:1/4E(E decreses by 4 times)
* out of 55 eggs 5 are defective. what is % of defective eggs
ans:9/11%
* area of triangle=1/2*b*h base incresed by 4 times & height is devided by 2, the net effect of area.
ans:twice the the original area.
* 1/8 is devided by 's' , if 's' is incresed by 2 times, what is the result.
ans:increses two times.
section 2. letter series
1. a c b d f e g i __ ans: h
2. x y z u v w r s t __ ans: o
3. a c f j o __ ans:u
section 3. numerical ability
1. 10099+99=10198
2. 31 - 29+2/33=__ ans:64/33
3. 2.904+0.0006=___ ans: 2.9046
4. 55/1000=___ ans:.005
5. 0.799*0.254= 0.202946
6. 200/7*5.04=144
7. 842.8 +602=1444.8
8. 5.72% of 418= 23.9096
9. 625% of 7.71=48.1875
10. 25% of 592=148.00
11. 665+22.9=687.9
12. 15% of 86.04=12.906
* in base representation for a rupee 100 paise,then base 8
representation what is rupee value .
ans:144
* A>B,B>C,C=D,D>E,then which is greatest
a)A/B b) A/C c) A/E d)none
ans: c
* to travel 'm' miles the time is 'h' hours,then what is the time taken to travel M miles.
ans:M*h/m
* a sum 's' is devided into 4 parts.second person gets Rs 10 more than
first.3rd person is Rs 10 more than second, 4th is 10 more than 3rd.
how much amount do 1st person get.
ans;(s-60)/4
* fridge cost R Rs,cover value is 5,discount d% then its new cost
ans:R-R*d/100-5(1-d/100)
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